I have not read the book either, and I also don't expect to buy it.
Fodor has an earlier paper "Against Darwinism" which is
available online. From that paper, you can see that what seems to bother Fodor, is that intentionality is left out of the neo-Darwinian account.
I am left wondering whether Fodor is using Darwin as a Proxy for Dennett, and opposition to the views Dennett expressed in his book "Darwin's Dangerous Idea", and Dennett's anti-intentionality views expressed in "The Intentional Stance."
Pass the popcorn.